public ContentionController(PerformanceDataContext context)
{
_MetricContext = context ?? throw new ArgumentNullException(nameof(context));
}
public void TestPerfData()
{
// Trace.TraceInformation("Starting TestPerfData");
Trace.TraceInformation("Starting TestPerfData", "Information");
try
{
var account = Microsoft.WindowsAzure.CloudStorageAccount.FromConfigurationSetting("DataConnectionString");
var context = new PerformanceDataContext(account.TableEndpoint.ToString(), account.Credentials);
var data = context.PerfData;
DateTime dtnow = DateTime.UtcNow.AddMinutes(-30);
DateTime dtnow2 = DateTime.UtcNow.AddMinutes(-20);
System.Collections.Generic.List <PerformanceData> selectedData = (from d in data
where d.CounterName == @"\Processor(_Total)\% Processor Time" &&
d.EventTickCount >=
dtnow.Ticks && d.EventTickCount <=
dtnow2.Ticks &&
d.Role == "ProjectCS218"
select d).ToList <PerformanceData>();
Trace.TraceInformation(selectedData.Count.ToString() + " " + dtnow.Ticks + " " + dtnow2.Ticks);;
double AvgCPU = selectedData.Where(p => p.CounterName == @"\Processor(_Total)\% Processor Time").DefaultIfEmpty().Average(p => p == null ? 0 : p.CounterValue);
/* double AvgCPU = (from d in selectedData
* where d.CounterName == @"\Processor(_Total)\% Processor Time"
* select d.CounterValue).Average();*/
//Trace.WriteLine("Average CPU == " + AvgCPU.ToString());
Trace.TraceInformation("Average CPU == " + AvgCPU.ToString(), "Information Role Name");
Trace.TraceInformation("Max Time Stamp CPU == " + selectedData.Max(item => item.Timestamp).ToString(), "Information");
Trace.TraceInformation("Min Time Stamp CPU == " + selectedData.Min(item => item.Timestamp).ToString(), "Information");
//test threshold
if (AvgCPU >= 1)
{
Trace.TraceInformation("Increase the instance by adding one more role" + AvgCPU.ToString(), "Information");
// Trace.TraceInformation(selectedData.Max(item => item.Timestamp).ToString(), "Information");
//Trace.TraceInformation(selectedData.Min(item => item.Timestamp).ToString(), "Information");
//increase instances
string deploymentInfo = AzureRESTMgmtHelper.GetDeploymentInfo();
string svcconfig = AzureRESTMgmtHelper.GetServiceConfig(deploymentInfo);
int InstanceCount = System.Convert.ToInt32(AzureRESTMgmtHelper.GetInstanceCount(svcconfig, "ProjectCS218"));
if (InstanceCount == 1)
{
InstanceCount++;
Trace.TraceInformation("Average CPU == " + AvgCPU.ToString(), "Information" + " Instance Count increased by 1");
string UpdatedSvcConfig = AzureRESTMgmtHelper.ChangeInstanceCount(svcconfig, "ProjectCS218", InstanceCount.ToString());
AzureRESTMgmtHelper.ChangeConfigFile(UpdatedSvcConfig);
}
}
else if (AvgCPU < 1) //50
{
Trace.TraceInformation("in the AvgCPU < 5 test.");
string deploymentInfo = AzureRESTMgmtHelper.GetDeploymentInfo();
string svcconfig = AzureRESTMgmtHelper.GetServiceConfig(deploymentInfo);
int InstanceCount = System.Convert.ToInt32(AzureRESTMgmtHelper.GetInstanceCount(svcconfig, "ProjectCS218"));
if (InstanceCount > 1)
{
InstanceCount--;
string UpdatedSvcConfig = AzureRESTMgmtHelper.ChangeInstanceCount(svcconfig, "ProjectCS218", InstanceCount.ToString());
AzureRESTMgmtHelper.ChangeConfigFile(UpdatedSvcConfig);
}
}
}
catch (System.Exception ex)
{
Trace.TraceInformation(ex.StackTrace, "Information");
Trace.WriteLine("Worker Role Error: " + ex.Message);
}
}
